Iterative and turbo-based method and apparatus for equalization of spread-spectrum downlink channels
US7551664B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2004 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Oct 4, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03509
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system, terminal, receiver and method are provided for receiving and processing a signal received from a spread-spectrum downlink channel. The method includes receiving the signal from the downlink channel, and generating an estimate of a transmitted chip sequence in accordance with an iterative process. In this regard, the iterative process includes calculating statistical information, such as a mean and covariance, for a previous iteration of a transmitted chip sequence, the statistical information being selectively calculated based upon one of soft bits and soft symbols associated with the previous iteration of the transmitted chip sequence. The estimate for a current iteration of the chip sequence is then generated based upon the statistical information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.